Necessary family business Justhuman 14??? Is not illness considered such? I understand your Dad is a co, but what about mum or siblings?
Whatever you do please read Steve Hassans "combatting mind control".
Make a decision after reading that so you have the tools to deal with whatever you have to face. It may help to seek a therapist too....that way if you do go back (and then cite illness as a reason to fade) you will have somewhere to sound off!